Safe absorbing device for lithium-ion battery

A lithium-ion battery and absorbing device technology, which is applied in battery pack components, secondary battery gas removal, secondary battery repair/maintenance, etc., can solve the problems of battery temperature rise, easy fire, safety accidents, etc., to achieve Effective absorption, avoiding fire and other dangers, and easy operation

Inactive Publication Date: 2013-04-03
SCUD FUJIAN ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Li-ion batteries with excellent performance, long cycle life and high energy density have been widely used in mobile communications and digital products; the main internal structure of the battery includes positive electrode sheets, negative electrode sheets and diaphragms. , Negative electrode sheet; At present, the battery may be overcharged or over-current during charging or discharging, which may cause the temperature of the battery to rise and the pressure to increase, resulting in an explosion; the electrolyte in the battery is a flammable liquid, and when the temperature is greater than its ignition point It will cause combustion; therefore, if the battery is in use or the internal short circuit caused by the internal defect

Method used

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  • Safe absorbing device for lithium-ion battery
  • Safe absorbing device for lithium-ion battery

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specific Embodiment approach

[0017] Such as figure 1 As shown, a lithium-ion battery safety absorption device includes a battery body 1, the battery body 1 is rectangular or cylindrical, and contains an electrolyte; it is characterized in that: the battery body 1 is provided with a safety valve 16 ; the battery body 1 is equipped with a safety absorbing device 2 ; the safety valve 16 communicates with the safety absorbing device 2 .

[0018] The safety absorbing device 2 is a cavity filled with absorbing material.

[0019] The absorbent material can be solid material, powder material, liquid material, colloidal material, polymeric foam.

[0020] The safety absorbing device 2 of the present invention can be a cavity made of metal, high-temperature-resistant and flame-retardant resin materials; it is filled with absorbing materials, which can absorb the high-temperature combustible liquid and gas ejected from the battery body 1, and prevent it from leaking and causing damage. fire.

[0021] The function ...

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Abstract

The invention discloses a safe absorbing device for a lithium-ion battery. The safe absorbing device for the lithium-ion battery relates to a lithium battery passive safety concept and is used for solving the problems of fire disasters and other danger due to the fact that the interior of the lithium-ion battery is subjected to high temperature and high pressure. The lithium-ion battery comprises a battery body, wherein the battery body is rectangular or cylindrical, and an electrolyte is contained in the battery body; the battery body is provided with a safety valve; the safe absorbing device is mounted on the battery body; and the safety valve is communicated with safe absorbing device. According to the safe absorbing device for the lithium-ion battery, after the safety valve is opened, high temperature liquid and gas in the battery body can be effectively absorbed, so that the fire disasters and other danger caused by the high temperature liquid and gas are avoided, the problem of potential safety hazards in the wide application of the lithium-ion battery is solved, and thus, the safe absorbing device for the lithium-ion battery has broad market prospects.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a lithium-ion battery safe absorption device. Background technique [0002] Li-ion batteries with excellent performance, long cycle life and high energy density have been widely used in mobile communications and digital products; the main internal structure of the battery includes positive electrode sheets, negative electrode sheets and diaphragms. , Negative electrode sheet; At present, the battery may be overcharged or over-current during charging or discharging, which may cause the temperature of the battery to rise and the pressure to increase, resulting in an explosion; the electrolyte in the battery is a flammable liquid, and when the temperature is greater than its ignition point Therefore, if the battery is in use or the internal short circuit caused by the internal defect of the battery causes the high-temperature electrolyte to flow out or spray out, it will burn; it is easy to...

Claims

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Application Information

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IPC IPC(8): H01M10/52H01M2/12
CPCY02E60/10
Inventor 郭泉增
Owner SCUD FUJIAN ELECTRONICS
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